Tips: Click coupon for price off. We are a professional manufacturer specializing in manufacturing ink & Toner Cartridges and drum units. What Will You Get in the Package? 1-Pack CRG-054 White Toner Cartridge. Compatible Printer Models: ImageCLASS MF640C printer ImageCLASS MF641Cw printer ImageCLASS MF645Cx printer ImageCLASS LBP621Cw printer ImageCLASS LBP622Cdw printer ImageCLASS LBP623Cdw printer ImageCLASS MF642Cdw printer ImageCLASS MF644Cdw printer ImageCLASS MF643Cdw printer Economy and Environment friendly: 1.High color saturation,high fidelity. 2.Ultrafiltration,no clogging caused. 3.No bleeding,no smear,high print quality. 4.Quick dry formula, high speed printing. 5.Deliver accurate professional sharp Color. 6.Get reliable performance and impressive images on every prints. 7.Simple installation steps make your work more convenient and quick. What Advantages do We Have? 40% More Page Yield ! Help save money and deliver more pages in our high-yield toner. Multi-layer packaging: Multiple protections to provide the safety of transportation. Every cartridge is carefully inspected and packaged to make sure it is in the best condition and delivered safely. Factory Standards:This replacement Toner Cartridge is built to ISO9001 and ISO14001 Factory Standards. All Toner Cartridges are engineered to produce superb results. What Warranty Will You Get from Us? From the moment you purchase products, you can enjoy our lifetime service. You can contact us at any time via the 'Contact Seller' on your order, and we will give you a satisfactory solution.